calculate the mass fo an unknown solid if its density is 1.6 g/cm^3 and it has a length of 7.5 cm, a height of 12.5 cm, and a width of 2.2 cm

Answers

Answer 1

Answer:

Density = Mass / Volume

Mass = Density * volume = 1.6 gm/cm^3 * (7.5 * 12.5 * 2.2) cm^3

Mass = 1.6 gm/cm^3 * (206 cm^3) = 330 gm


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a Name the store of energy when you are
pressing downwards on the stretchy skin
of the trampoline

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Kinetic energy is stored when you are pressing downwards in a trampoline

Which event demonstrates electromagnetic waves transferring energy?.

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Answer:

Radiation is the transfer of heat energy through space by electromagnetic radiation.

Explanation:

The symbols used in language have no direct relationship between the word and the object or idea.

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Answer:

The symbols used in language have no direct relationship between the word and the object or idea. Underextension in language occurs when a child incorrectly uses one word to describe other objects or actions that are similar to that word. ... Morphemes are the smallest distinctive sound units in a language.

Explanation:

Answer:

True

Explanation:

e2021

look at picture, need to know net force, whether they are balanced or unbalanced and whether they are accelerated or not accelerated!

Answers

Answer:

1) 100 ...unb. and accelerate

2) 7...unb. and accelerate

the weight of a box having of 100 kg is __n

Answers

Answer:

mom                                                                                                

Explanation:

Make a
claim about whether a mixture could be made
up of only elements and no compounds.
Summarize evidence to support the claim and
explain your reasoning.

Answers

Answer:

Yes, a mixture can be made up of just elements and no compounds. The elements never experiance a chemical interaction and stay only in physical contact with each other.

BRAILIEST PLS I NEED LEVEL UP!

A rock is thrown upward with a speed of 2.0m/s.
a. How long will it take the rock to reach the peak?
b. What is the maximum height it can reach?

Answers

Hi there!

(A)

When the rock reaches the peak, it will have a vertical velocity of 0 m/s. We can use the equation:

vf = vi + at

vf = final velocity (0 m/s)

vi = initial velocity (2 m/s)

a = acceleration (in this situation, due to gravity = 9.8 m/s²)

t = time (s)

0 = 2 + (-9.8)t

2/9.8 = t = .204 sec

(B)

Use the equation:

d = vit + 1/2at²

d = 2(.204) + 1/2(-9.8)(.204²)

d = .204 m

explique o que você da frase:"não somos seres humanos passando por uma experiência espiritual... somos seres espirituais passando por uma experiência humana

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Answer:

Talvez o que ele quis dizer é que tudo o que temos não é nosso, mas de Deus, e o que fazemos é saber como será estar vivo

Pythagoras theorem is used to find the resultant force when angle between 2 forces is _________ degrees. asap

0
45
90
180

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Pythagoras theorem is used to find the resultant force when angle between 2 forces is 90 degrees ~

Describe what it means to view something from a frame of reference.Give an example to illustrate your explanation.

Answers

like just try and try you gut it just trust me I'm a Wuman and you a man

transivity, reflexivity, and identity refer to what kind of reasoning?

Answers

Deductive reasoning

Deductive reasoning. Deductive reasoning implies the use of a given set of facts or data to deduce other facts, by reasoning logically. It rearranges information that is already known into new statements or truths. Hence transitivity, reflexivity, and identity refer to it and are necessary elements.

What are deductive reasoning and examples?

Deductive reasoning is a type of deduction used in science and in life. It is when you take two true statements, or premises, to form a conclusion. For example, A is equal to B. B is also equal to C. Given those two statements, you can conclude A is equal to C using deductive reasoning.

Learn more about deductive reasoning here: brainly.com/question/860494

#SPJ2

What is the net force needed to accelerate a 1 kg textbook with an acceleration of
4 m/s2

Answers

Answer:

4 N

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question

mass = 1 kg

acceleration = 4 m/s²

We have

force = 1 × 4 = 4

We have the final answer as

4 N

Hope this helps you

Look at the circuit below. What is the potential difference across lamp 2?

Answers

The potential difference across lamp #2 is 4.5 volts.

17. Explain how to calculate the density of an irregular shaped object such as a

rock.

Your

answer

Answers

Answer:

Q andA : Density of an irregular shape

1: the density of something is just th mass divided by the volume:D=m\V

2: As described in the previous question the density is given by D= M\V

3: the density just means how much mass per volume.

how to find total internal reflection

Answers

(c) Total internal reflection occurs

when the incident angle is greater than the critical angle.

n1 sin θ1 = n2 sin θ2. n1 sin θ1 = n2.

hope it helps

A chemical lab isolates a gaseous element from the atmosphere that does not form chemical compounds. In which group of the periodic table is this element most likely found?

A. 18

B. 17

C. 1

D. 2​

Answers

Answer:

A- 18

Explanation:

It wont let me explain how

An athlete spins in a circle and throws a 1.6-kg discus. The radius of the discus's path is 1.0 m, and he releases it with an angular speed of 15.0 rad/s. The athlete spins for a total of 1.2 s before releasing the discus.
– What is the tangential speed of the discus at release?
– What is the centripetal acceleration of the discus?
– What is the centripetal force on the discus?

giving Brainliest for full and proper answers! thank you for anyone who tries to help/explain :)

Answers

(a) The tangential speed of the discus at the release is 15 m/s.

(b) The centripetal acceleration of the discus is 225 m/s².

(c) The centripetal force on the discus is 360 N.

The given parameters;

mass of the discus, m = 1.6 kgradius of the path, r = 1 mangular speed, ω = 15 rad/stime of motion, t = 1.2 s

The tangential speed of the discus at the release is calculated as follows;

[tex]v = \omega r\\\\v = 15 \ rad/s \ \times 1 \ m\\\\v = 15 \ m/s[/tex]

The centripetal acceleration of the discus is calculated as follows;

[tex]a_c = \frac{v^2}{r} \\\\a_c = \frac{15^2}{1} \\\\a _c = 225 \ m/s^2[/tex]

The centripetal force on the discus is calculated as follows;

[tex]F_c = ma_c\\\\F_c = 1.6 \times 225\\\\F_c = 360 \ N[/tex]

Learn more here:https://brainly.com/question/11700262

Are these pictures below an example of reflection or refraction?

Answers

Refraction because the light is being altered (bending) and appearing in a different way (direction). Reflection is like a mirror

Answer:

Refraction

Explanation:

Reflection involves a change in direction of waves when they bounce off a barrier.

Refraction of waves involves a change in the direction of waves as they pass from one medium to another.

Please mark as brainliest if this helps! :)


Could someone please help me

Answers

Answer:

the size of the shadow will be smaller due to smaller hands

Which vehicle will have more kinetic energy, a parked
semitruck or a car moving at 50 km/h?

Answers

Answer:

a semi truck

Explanation:

9. A car of 1200 kg is rolling down a hill. When the car reaches a momentum of 7800 kg
m/s, what is its velocity?

Answers

Answer:

V = p/m = 7800/1200 = 6.5m/s

Explanation:

helppppppp meeee please

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Answer:

B.X substance = sulfur dioxide, Y substances = sodium carbonate

Explanation:

sorry for wrong because that is my predicted

Explain how bats use ultrasound to catch a prey​

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Answer:

Ultrasound is used by bats to navigate (move) and catch prey. Ultrasonic squeaks are produced by bats. These squeaks ponder prey and then return to the bat's ear. This provides bats with information about the location of prey, allowing them to catch it.

Explanation:

Công thức tính gia tốc hướng tâm trong chuyển động tròn đều
a. aht = v2/R. B. aht = v2R. C. aht = 2R. C. aht = 42f2/R.

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Answer:

I am really sorry but I can't understand the question.

Can you translate the question to English?

Explanation:

Tell me in simple words what gravitation is.

Answers

Answer:

The movement, or a tendency to move, toward a center of gravity, as in the falling of bodies to the earth is called gravitation

How do you find out the missing masses in a balloon

Answers

Answer:

How do you find out the missing masses in a balloon?

Well, actually you can't find the missing masses in a balloon. Why?

Because the mass of the mass of balloon, it can't see the mass of it, it only see if it the balloon is deflated or inflated.

Explanation:

Hope it helps

#LetsStudy

Highest common factor of 12r and 10

Answers

I think the number 2, not sure


Jorge is driving along Route 120 at a speed of 25 m/s. Seeing a red light ahead, he applies the brakes and comes to rest in 3.7 seconds. What is
his rate of acceleration?

Answers

Answer:

I don't know...

I'm sorry

NEED HELP!!! ANSWER THESE 5 QUESTIONS FOR 25 POINTS!!!! PLEASE ANSWER!! I WILL GIVE YOU BRAINEST

1. Jerome explains to his doctor that because he spends a lot of time at his desk, he makes sure that his chair supports good posture. But when he is home, he spends his time on an old, squishy couch that offers very little support. He figures that since he spends most of his time at work, he does not need to worry about his home furniture as much. How would Jerome’s doctor MOST likely reply?
A.
Jerome’s thinking is correct since he spends most of his time at work.
B.
Jerome should bring his chair from work home with him on the weekend.
C.
If Jerome’s standing posture is good, he does not have to worry about his seated posture.
D.
Sitting properly is important in all contexts, so Jerome should consider his seating at home.

2. Guillermo has decided that he wants to be healthier, so he starts jogging. He has been at it for a week, but he is getting frustrated because he cannot run very far without getting out of breath. He is beginning to think that this is not a good exercise for him since he is not very good at it. What BEST explains why Guillermo is struggling?
A.
He probably does not have good form when he is exercising.
B.
He likely has heart or lung problems that he was not aware of.
C.
He does not have much endurance since he is new to exercise.
D.
He is just not good at jogging and needs to try something else.

3. Which is the BEST example of the kind of mechanics that are studied in sports biometrics?
A.
the average attendance at a sporting event
B.
how a new sport becomes popular in a community
C.
the movement of the wrist when hitting a tennis ball
D.
the median height of the most successful hockey goalies

4. Ewan had a resting heart rate of about 110. What does this indicate?
A.
His heart rate is perfectly average.
B.
He probably has a high metabolism.
C.
He needs to work on raising his resting heart rate.
D.
His heart rate is high and could indicate a problem.

5. Why is acceptance an important part of building a healthy lifestyle?
A.
Exercise will probably not change much in your life.
B.
Healthy lifestyles often create a lot of disappointment.
C.
If you understand your limitations, you are less likely to be frustrated.
D.
Finding the energy to exercise can be hard, so you should limit your goals.

PLEASE NO LINKS

Answers

1. D
2. C
3. C
4. D
5. D
•••••••••••••••••••••••••••••••••••••••••••••••••
I really hope this helps! These answers are the most reasonable.

You receive a generic email notification about an issue with the delivery of a recent order. You’re instructed to click on a link included in the email for further information about the order. When you click, it opens a webpage which asks for your account username and password before you can view the information. Which of the following is the biggest red flag in this scenario?
A. There is an issue while delivering your order.
B. The email you received was a generic notification.
C. The information about the delivery problems is not contained in the email.
D. Your username and password are required to view the information.

Answers

Answer:     C. The information about the delivery problems is not contained in the email.

Explanation: please give brainliest

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